Cupola attachment.



G; J. LANGHORST.

CUPOLA ATTACHMENT.

APPLICATION FILED APR. 6, 190a.

Patented Jan. 12, 1909.

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GUPOLA ATTACHMENT.

APPLICATION FILED APR. 6, 190a.

Patented Jan. 12, 1909.

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GUPOLA ATTACHMENT.

APPLICATION FILED APR. 6, 1908.

909,622. Patented Jan. 12,1909.

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G. J. LANGHORST.

CUPOLA ATTACHMENT.

APPLICATION FILED APR. 6, 1908. 909,622.

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G. J. LANGHORST.

GUPOLA ATTACHMENT.

APPLICATION FILED APR. 6, 1908.

909,622, Patented Jan. 12, 1909.

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CUPOLA ATTACHJVLENT.

Specification of Letters Patent.

Application filed April 6, 1908.

Patented Jan. 12, 1909.

Serial No. 425,540.

To all whom it may concern:

Be it known that I, CHARLES J. LANG- HORST, a citizen of the United States, residing at St. Marys, in the county of Auglaize and State of Ohio, have invented certain new and useful Improvements ,in- Cupola Attachments; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to attachments for cupolas and has for its object to provide means for opening and closing the outlet of the cupola, to Wh1ch is connected means for automatically mixing alloy with the molten metal.

For these and other objects which will appear as the nature of this invention is disclosed, the invention consists of certain novel arrangements and combinations of parts of which the herein-described attachment is one of many embodiments.

While herein are described minute details of this invention, I do not limit myself to these as the same may be greatly varied without departing from the spirit and scope of the invention.

In the accompanying drawings forming a part of this specification in which like reference characters refer to like parts throughout the several views and which are for illustrative purposes only and therefore not drawn to any particular scale, Figure 1 is a side elevation, of the attachment, parts being broken away; Fig. 2 is a side elevation showin the opposite side of the attachment; Fig. 3 is a longitudinal, sectional view taken on the line 3-3 of Fig. 4; Fig. 4 is a top plan view; Fig. 5 is a sectional view taken on the line 5-5 of Fig. 4; Fig. 6 is a sectional view taken on the line 66 of Fig. 4; Fi 7 is a bottom plan view of the a loy tank; Fig. 8 is a side elevation showing a modification, arts being omitted,

l view taken on the line 99 of Fig. 4.

Referring more particularly to the drawings, I will first describe the mechanism for opening and closing the cupola outfit.

Extending from the cupola (1), in proper relation with the outlet 2 thereof is the trough 3 which -.is provided with a linin 4 of any suitable, non-combustible material. Situated on both sides of the trough 3, somewhat removed from the inner end thereof are the elongated bearings 5 and 6, adapted to receive rotatably and slidably therein the rounded ends 7 and 8 of the squared sleeve 9. The ends 7 and 8 project through the bearings 5 and 6 and have rigidly connected thereto the lever arms 11 and 12. The lever arms 11 and 12 are provided with irregular shaped slots 13 adapted to receive and slide upon the projecting stub pins 14 rigidly secured to the sides of the trough 3. Integrally secured to the upper part of the sleeve 9 mid-way between its ends is the disk 15, having an upwardly extending boss 16 upon WlllCh is rotatably mounted therotating disk 17 held thereon by a screw 18. Upon the disk 17 is integrally secured the stopper arm 19 carrying the stopper or cone 20. Rearwardly projectin from the disk 15 is the rearwardly exten 1n In 15 ada ted to contact the" g g P downwardly projecting pin 19 carried by the stopper arm 19 whereby the movement of the arm 19 is limited in one direction.

The stopper 20 is cone-shaped and is provided with straight shaped teeth 21 upon the surface of the cone, which may be covered with friable material. The stopper arm 19 is provided with a bore at the end 22 thereof adapted to receive the rear reduced extension 23 carried by the cone 20. This reduced extension is provided substantially mid-way between its ends with a laterally projecting pin 24 adapted to have transverse motion in the are shaped slot 25.

The sleeve 9 is provided with an axial bore extending therethrough from end to end, and extending through said opening and projecting at each end is the shaft 26 adapted to rotate therein.

Situated in close engagement with the bosses 27 of the arms 11 and 12 are inions 28 and 29 rigidly secured to said sha Extending longitudinally of the trough 3 spaced parallel with the bearings 5 and 6 are the racks 30 and 31 having teeth adapted to intermesh with the teeth of the inions 28 and 29; these racks are integral wlth brackets 32 secured to the sides of the trou h 3. The shaft 26 projects at each end eyond the pinions 28 and 29, one end being provided with a hand-wheel 33, provided with a han-' dle 34; the other end 35 projects for a purpose which will be described hereinafter.

The operation of the cu ola outlet opening and closlng means is as ollows: The outlet 2 being closed it is opened as follows, the pin 24 is grasped with a wrench or other suitable tool and is rocked back and forth thus oscillating the cone 20 until the clay covering thereof is crumbled. The hand-wheel 33 is then rotated forwardly carrying the shaft 26 and the sleeve 9 and with them the stopper arm 19 translatably away from the opening 2 until the curved surfaces 36 of irregular slots 13 meet the pins 14. Then, as will be apparent, the arms 11 and 12 will be raised thus rotating the sleeve 9 in the bearings 5 and 6 until the arm 19 is substantially horizontal. When this position is reached further rotation of the hand-wheel causes the downwardly projecting pin 37 carried by the disk 17 to engage the shoulder 38 carried by the horizontal plate 39 forming part of the bearing 5. On further rotation of the handwheel this shoulder 38 bears against the pin 37 and causes the disk 17 and the arm 19 to rotate until the arm 19 projects laterally above the trough 3 at any angle desired, say between 45 and 90. In order to close the cupola outlet a new covering of clay is placed upon the cone 20 or an entirely new cone is attached; the hand-wheel is then rotated in the opposite direction and the arm 19 is caused to assume a longitudinal position by means of the pin 37 first coming in contact with a smaller shoulder 40 opposite the shoulder 38 and then in contact with the edge 41 of the plate 39. After this position has been assumed the irregular shape of the slots 13 causes the arm 19 to lower to the proper position for placing the cone 20 in the outlet 2.

Now I will proceed to describe the means for mixing the liquid metal with its alloy and remove the dirt and the other foreign substances therefrom.

The outer end of the trough 3 is vertically, cylindrically concave to receive the side of the cylindrical whirling pot 42. At the four corners of its outer end the trough 3 is provlded with projecting ears 43, 44, 45 and 46 and the whirling pot 42 is provided with elongated projecting portions 47 and 48 adapted to be movably received between said ears; the ears 43 and 44 and the projecting portion 47 are provided with registering bores adapted to receive a screw bolt 49 by which in connection with said ears and said portlon is formed a hinge upon which the whirling pot may be swung away from the end of the trough when it is desired to thrust a rod or the like into the opening 2.

Opposite the projecting portion 48 the side of the trough 3 is provided with a pivoted bolt 50 provided with a wing nut 51 adapted to press upon the laterally extending spaced lugs 52 adapted to receive therebetween said bolt 50; in this manner as is apparent the whirling pot may be locked against the end of the trough.

The whirling pot is provided with a suiteoaeae able lining 53 to protect it from the molten metal. In order to give the metal inside of the whirling pot a whirling motion the runway 54 of the trough 3 is fashioned with a diagonally extending opening 55 emptying into the whirling pot through the opening 56 about half way up the side thereof, as will be apparent the molten metal flows into the whirling pot tangentially thereof, thus giving to the liquid therein a whirling motion. The liquid is allowed to flow out of the whirling pot through the bottom opening 57 which may if desired be provided with a slide 58 sliding between the spaced shouldered track ways 59, by which the flow of the liquid from the whirling pot may be regulated. Also if found desirable the opening 57 may be closed by means of a plug of clay placed upona rod rendered non-combustible in any suitable manner. If desired, in order to further induce a whirling of the metal in the whirling pot I may provide a mechanical additional whirling means. This may consist of one or more downwardly projectin fingers, 60 mounted upon a support 61 which is in turn secured to the lower part of the rotating shaft 62 mounted in bearings 63 in the bracket 64. The bracket 64 is provided with a downwardly extending support 65 adapted to be held in the dove-tailed seat 66 on the whirling pot. The shaft 62 may be provided with a handle (63) by which the same may be rotated and held against downward movement. The finger 60 may be covered with a non-combustible material 67. A collar 63 furnishes additional means to prevent endwise movement of the shaft 62.

It will be readily understood that when the metal is flowing into the whirling pot at the opening 56 that the dross and impurities will remain on top of the metal where they may be skimmed off.

The function of the whirling means 60 is readily understood. By means of the handle 63, they may be rotated to give the metal in the whirling pot any desired speed of whirlmg.

I will now proceed to describe the means for automatically pouring alloy into the molten metal.

Outwardly projecting from the ends of the bracket 32 near the end 35 of the shaft 26 opposite the hand-wheel 33 are projecting brackets 68 and 69, being provided with bearings adapted to slidably receive a bar 7 O. Secured to the bracket 32 is the upstanding support 71 which extends upwardly for a distance above the level of the trough 3 or the whirling pot carries upon the end thereof the alloy tank 72.

The bottom of the alloy tank is provided near the edge thereof with an opening 73 and the said bottom is provided at its center with a boss 74 adapted to receive the end of the screw bolt 75 projecting downwardly from said bottom. Rotatablymounted on said screw bolt and in snug engagement with the bottom of the tank is the wheel provided with the graduated openings 76 any one of which is adapted to register with the opening 73 on the-rotation of the wheel 75. In order that the wheel 75 may be held so that any one of the openings 76 is in exact alinement .with the opening 73, I provide the wheel. with outstanding lugs 77 which are provided with a perforation 7 8, each perforation being adapted to exactly register with a perforation 79 in the 1ug80 carried by the tank 72 when the opening 73 registers exactly with one of the openings 76. The wheel 75 is held in any one of these positions by means of a pin 81 passing through the perforation 79 and one of the perforations 78; when it is desired to change the opening 76 registering with the opening 73 so that a smaller or larger opening may register therewith, this can be done by removing the pin 81 and rotating the wheel 75 until the desired openings are in alinement. Then the pin 81 may be replaced.

Pivotally mounted upon the lower end of the bolt 75 is the closure 82 adapted to open or close the opening under the opening 73. This closure is operated by the bar 70 which is bent upwardly and then forwardly as at 83 and then upwardly to have pivotal connection with the perforation 84:, in the closure 82. Rigidly secured to the bar 7 O intermediate the brackets 67 and 68 is the block 85 provided with oppositely disposed shoulders 86 and 87 adapted to be contacted by the ends 35 of the shaft 26 at the outward and inward movements of said shaft. It

will be seen that when said shaft reaches its inward limit of movement as on closing the outlet 2'that the bar 70 moves backwardly causing the closure 82 to slide to underneath the opening 73 andwhen the shaft 26 registers its outward limit of movement it will contact the shoulder 87 and thus cause the bar 70 to slide the closure 82 from beneath the opening 73 thus affording passage for the alloy to flow from the tank 72. The alloys commonly used are solids ground up like powder or sand so that they will flow freely and the rectangular spaces 88 around the openings 76 are provided so that in shutting off the flow or on turning one hole to another the particles of the alloy will be shoved off of the closure 82 thus preventing clogging.

If it is desired, the tank 72 may be placed so that the opening 73 will be directly over the whirling pot or the trough and when in this position no additional means is necessary to convey alloy from said tank but when the tank is placed to one side as herein illustrated I provide some means such as a slanting trough 89 held by means of a curved strip 90 to the side of the tank 72.

The tank 89 thus serves to direct the alloy into the main trough itself at any point or into the whirling: pot if desired.

In order to regulate the rate of the flow of the alloy from the tank I have provided the wheel 75 which is adapted to place one of the openings 76 in register with the opening 73 as has been explained. In order to prevent the leakage of the alloy when the wheel is being thus rotated I provide a slide '91'provided with an upturned handle end 92 projecting through a slot 93 in the side of the tank 72; the inner end of said slide 1s adapted to slide over the opening 73 whereby said opening may be closed when it is desired to rotate the wheel 75.

The operation of the various parts of my device having been described separately it is thought that the operation of the whole will be understood without further explanation.

With some cupolas the lever armsl-l and 12 as hereinbefore described may be too long, so for such cupolas I provide a modified form of arm 94 which is provided at its free end with a roller 95 adapted to ride upon the tracks 96 on each side of the trough 3. It will be seen that when the shaft 26 is moved outwardly that this roller will strike the slanting part 97 of the track thus forcing the arm 19 to its upper position.

The advantages of my attachment are obvious. The old method of mixing the alloy is to put the alloy in the bottom of the ladle to be used and mixing it with a stick or not at all. Hence it might not be uniform or thoroughly mixed and there are liable to be hard spots in the iron. The whirling motion given to the molten iron in the whirling pot not only thoroughly mixes the alloy with the molten metal but eliminates the dirt and impurities, which will come to the top and be left behind in the pot or in the trough 3 just above the opening 55.

Of course the spout and pot should all be made of proper materials and lined with some incombustible lining not affected by the molten metal.

I do not limit myself to the particular form of stopper shown but reserve the right to substitute any kind of automatic stopper that will answer the purpose and any kind of operating means therefor.

It is also to be understood that the attachment herein described can be used in connection with furnaces as well as cupolas.

Having thusdescribed my invention, what I claim as new and desire to secure by Letters Patent, is

1. In combination a cupola having an outlet, a stopper for said outlet, mechanical means for removing and replacing said stopper, an alloy tank having an opening therein, a closure for said opening and means connecting said mechanical means with said' closure to automatically operate said closure mechanical means to operate said stopper when said stopper is removed or replaced. and means connecting said closure with sa1d 2. In combination, a cupola having a mechanical operating means whereby the tapping outlet, a whirling pot, a trough conclosure is operated when said stopper is 0pnecting said outlet with the whirling pot erated.

and an alloy tank having a connection to i In testimony whereof I have hereunto set said whirling pot. my hand in presence of two subscribing wit- 3. In combination a cupola having an outnesses.

let, a trough for said outlet, a whirling pot CHARLES J. LANGHORST.

. for said trough, an alloy tank, said tank WVitnesses:

being provided with an opening, a closure ROY E. LAYTON, for said opening, a stopper for said outlet, F. C. LAYTON. 

